mod_form.php

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

/**
 * unilabel module.
 *
 * @package     mod_unilabel
 * @author      Andreas Grabs <info@grabs-edv.de>
 * @copyright   2018 onwards Grabs EDV {@link https://www.grabs-edv.de}
 * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
defined('MOODLE_INTERNAL') || die;

require_once($CFG->dirroot . '/course/moodleform_mod.php');

/**
 * Settings form for the activity instance.
 * @package     mod_unilabel
 * @author      Andreas Grabs <info@grabs-edv.de>
 * @copyright   2018 onwards Grabs EDV {@link https://www.grabs-edv.de}
 * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */
class mod_unilabel_mod_form extends moodleform_mod {
    /**
     * Definition of elements for the activity instance.
     *
     * @return void
     */
    public function definition() {
        global $PAGE;

        $PAGE->force_settings_menu();

        $mform = $this->_form;

        $mform->addElement('header', 'generalhdr', get_string('general'));

        $mform->addElement('text', 'name', get_string('name'), ['size' => '48']);
        $mform->setType('name', PARAM_TEXT);
        $mform->addRule('name', null, 'required', null, 'client');
        $mform->addRule('name', get_string('maximumchars', '', 255), 'maxlength', 255, 'client');

        $this->standard_intro_elements(get_string('unilabeltext', 'mod_unilabel'));

        $plugins = \mod_unilabel\factory::get_plugin_list();
        $plugintypes = array_keys($plugins);

        $plugins = ['' => get_string('choose')] + $plugins;
        $mform->addElement('select', 'unilabeltype', get_string('labeltype', 'mod_unilabel'), $plugins);
        $mform->addRule('unilabeltype', get_string('required'), 'required', null, 'client');
        $mform->addHelpButton('unilabeltype', 'labeltype', 'mod_unilabel');

        foreach ($plugintypes as $type) {
            \mod_unilabel\factory::add_edit_info_element($type, $mform);
        }

        // Unilabel does not add "Show description" checkbox meaning that 'intro' is always shown on the course page.
        $mform->addElement('hidden', 'showdescription', 1);
        $mform->setType('showdescription', PARAM_INT);

        $this->standard_coursemodule_elements();

        // The buttons.
        $this->add_action_buttons(true, false, null);
    }
}